Osmu (one source multi use)-type stereoscopic camera and method of making stereoscopic video content thereof

Abstract

A one source multi use (OSMU)-type stereoscopic camera is disclosed. The stereoscopic camera includes left and right cameras of which lenses are aligned with parallel optical axes, a separation adjustment unit for adjusting the separation between the cameras, a critical parallax computing unit, a camera separation computing unit, and an image storage unit. The critical parallax computing unit adjusts the focus of the stereoscopic camera to an object and determines the far point of an image so that a maximum critical parallax is computed based on a far point limit parallax of a medium-size display. The camera separation computing unit computes the separation between the optical axes based on the computed critical parallax and drives the separation adjustment unit. The image storage unit stores images photographed by the readjusted cameras. Therefore, stereoscopic video made according to the present invention may be viewed on various sizes of displays.

Description

TECHNICAL FIELD[0001]The present invention relates to a one source multi use (OSMU) type stereoscopic camera and a method of making stereoscopic video content, and more particularly to a stereoscopic camera and a method of making stereoscopic video content capable of providing stereoscopic video content that can be viewed on various sizes of 3D (three-dimensional) displays, such as cellular phones, display panels, personal computers, digital televisions, large movie screens, and so on, without eye fatigue.BACKGROUND ART[0002]A stereoscopic image may be generated by mixing left and right images having parallax. In the stereoscopic image displayed on a screen, an image having negative parallax appears to protrude out of the screen, and an image having positive parallax appears to be recessed into the screen in comparison with an image having zero parallax.[0003]In reality, even though eye focus is adjusted to the screen, fusion processes of the eyes are varied according to parallaxes ...

AI Technical Summary

Benefits of technology

"The present invention provides a stereoscopic camera and method of making stereoscopic video content that can be viewed on various sizes of 3D displays without causing eye fatigue or headaches. The camera adjusts the separation between the left and right cameras and the distance between the camera and the object being photographed to create a natural stereoscopic effect that can be viewed on small-size displays as well as large-screen displays. The one source multi use (OSMU) type stereoscopic video content can be made using the stereoscopic camera and method. The camera and method adjust the focus of the camera to the object being photographed and determine the far point of the image, creating a maximum critical parallax that can be viewed on a medium-size stereoscopic display. The separation between the optical axes in the camera is set to an arbitrary value, and the camera separation computing unit computes the separation between the parallel optical axes based on the computed critical parallax and drives the separation adjustment unit in response. The image storage unit stores left and right images adjusted to the critical parallax. The technical effect of the invention is to provide a stereoscopic camera and method that can create a natural stereoscopic effect without eye fatigue or headaches, regardless of the size of the display."

Problems solved by technology

Moreover, the images may not seem to be natural or realistic, and the observer may see a double image in serious cases.

Thus, stereoscopic images made for a large movie screen having a convergence distance over 10 m may not be suitable for small-size displays such as mobile handsets having a convergence distance under 30 cm.

Conversely, stereoscopic images made for small-size displays cannot be displayed on a large movie screen having a long convergence distance.

Because the stereoscopic images have been made as one source-one use type images, distribution of stereoscopic video content has been limited, and thus the various content business market has not been active.

However, the parallax of an object having a large horizontal width may exceed a convergence limit when the display size becomes extremely wide, not only in normal 2D (two-dimensional) viewing conditions but also in stereoscopic imaging.

However, a one source multi use (OSMU) type stereoscopic image which is suitable for a small-size display of 2″ to a large movie screen for a theater has not been made until now.

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